Quantitative Analysis of Forest Landscape Security Patterns at the Three-Gorges Reservoir Area

SUN Xiao-juan; XIAO Wen-fa; LIU Xiao-dong

Based on GIS platform and the historical data of national forest resources investigation and the located monitoring network system, the forest landscape security pattern at the Three-Gorge reservoir area was evaluated quantitatively by using the multiple level evaluation indicator system established by means of Analytical Hierarchy Process (AHP). The effects of forest landscape fragmentation degree, diversity, integrity and stability on the regional forest landscape security pattern were analyzed. The main purpose is to evaluate the probably damage on forest ecosystem and its components caused by the uncertain disasters and events. According to the results of integrated risk evaluation, Xingshan County showed the highest value, with the integrated risk evaluation value reached 11.553. The values of Shizhu County, Wulong County, Zigui County were all above 10, that of Badong County, Fengjie County and Yiling County were also relative high, while that of Chongqing and surrounding areas was 5.788, that means these areas have the lowest degree of landscape security, and necessary measures should be taken to maintain the regional sustainable development and ecological security.

1. China International Engineering Consulting Corporation, Beijing 100048, China

2. Research Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Beijing 100091, China

3. Beijing Forestry University, Beijing 100083, China

Received Date: 2014-03-15

Abstract: Based on GIS platform and the historical data of national forest resources investigation and the located monitoring network system, the forest landscape security pattern at the Three-Gorge reservoir area was evaluated quantitatively by using the multiple level evaluation indicator system established by means of Analytical Hierarchy Process (AHP). The effects of forest landscape fragmentation degree, diversity, integrity and stability on the regional forest landscape security pattern were analyzed. The main purpose is to evaluate the probably damage on forest ecosystem and its components caused by the uncertain disasters and events. According to the results of integrated risk evaluation, Xingshan County showed the highest value, with the integrated risk evaluation value reached 11.553. The values of Shizhu County, Wulong County, Zigui County were all above 10, that of Badong County, Fengjie County and Yiling County were also relative high, while that of Chongqing and surrounding areas was 5.788, that means these areas have the lowest degree of landscape security, and necessary measures should be taken to maintain the regional sustainable development and ecological security.

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Reference (13)

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Quantitative Analysis of Forest Landscape Security Patterns at the Three-Gorges Reservoir Area

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